these 2 derivations will be built:
  /nix/store/cqmams3c0z20w6lbq33f2m1q7kqb0ny9-amp-linux-x64.drv
  /nix/store/krw02mjjjysjwih9l4ddd9a3lk0silph-amp-0.0.1787342526-gc11bfb.drv